FZCA52 TJSJ 212016 CWFSJU Coastal Waters Forecast National Weather Service San Juan PR 416 PM AST Wed May 21 2025 Puerto Rico and the U.S. Virgin Islands Waters AMZ700-220930- 416 PM AST Wed May 21 2025 .SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS... Light to gentle easterly winds continue this evening across most local waters. However, a building surface high pressure over the central Atlantic will bring moderate to locally fresh easterly trades tonight through the weekend. Isolated thunderstorms will continue to develop across the regional waters, particularly across the northern and western coastal waters of Puerto Rico each afternoon. $$ AMZ711-220930- Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 416 PM AST Wed May 21 2025 .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 4 seconds and east 3 feet at 8 seconds. Isolated showers. .THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 4 seconds and east 3 feet at 8 seconds. .THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds and east 2 feet at 8 seconds. Scattered showers in the evening. .FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 5 seconds and east 2 feet at 8 seconds. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 7 seconds and north 1 foot at 9 seconds. .SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 7 seconds and north 2 feet at 9 seconds. .SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 5 feet, occasionally to 6 feet. .SUNDAY...East winds 15 to 20 knots. Seas around 5 feet, occasionally to 6 feet. .SUNDAY NIGHT...East winds 15 to 20 knots. Seas around 5 feet, occasionally to 6 feet. .MONDAY...East winds around 15 knots. Seas around 5 feet, occasionally to 6 feet. .MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. $$ AMZ712-220930- Coastal Waters of Northern Puerto Rico out 10 NM- 416 PM AST Wed May 21 2025 .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at 4 seconds and east 2 feet at 8 seconds. Scattered showers early this evening, then isolated showers late this evening and overnight. .THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 4 seconds and east 1 foot at 8 seconds. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers in the evening. .FRIDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds and east 1 foot at 8 seconds. .FRIDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds and east 1 foot at 8 seconds. .SATURDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds and north 1 foot at 9 seconds. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. .SUNDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet. .MONDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet. $$ AMZ716-220930- Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM- 416 PM AST Wed May 21 2025 .TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at 4 seconds and east 2 feet at 8 seconds. Scattered showers this evening, then isolated showers after midnight. Scattered showers late. .THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at 4 seconds and east 1 foot at 8 seconds. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 4 seconds and east 1 foot at 8 seconds. Scattered showers in the evening. .FRIDAY...East winds around 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers in the morning. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds and north 1 foot at 9 seconds. .SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds and north 2 feet at 9 seconds. .SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SUNDAY...East winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SUNDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. .MONDAY...East winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. .MONDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. $$ AMZ723-220930- Anegada Passage east of Virgin Gorda and Saint Croix south to 17N- 416 PM AST Wed May 21 2025 .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 5 seconds and east 2 feet at 8 seconds. Scattered showers, mainly this evening. .THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas around 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers. .FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds and north 1 foot at 10 seconds. Scattered showers. .SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds and north 1 foot at 9 seconds. .SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 5 feet, occasionally to 6 feet. .SUNDAY...East winds around 15 knots. Seas around 5 feet, occasionally to 6 feet. .SUNDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. .MONDAY...East winds 15 to 20 knots. Seas around 5 feet, occasionally to 6 feet. .MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers. $$ AMZ726-220930- Coastal waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John- 416 PM AST Wed May 21 2025 .TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at 5 seconds and east 2 feet at 8 seconds. Scattered showers this evening, then isolated showers after midnight. Scattered showers late. .THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers. .FRIDAY...East winds around 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. .SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. .SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SUNDAY...East winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SUNDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers. .MONDAY...East winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers in the afternoon. .MONDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers. $$ AMZ733-220930- Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix- 416 PM AST Wed May 21 2025 .TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and east 2 feet at 8 seconds. Scattered showers, mainly this evening. .THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers. .THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers. .FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds. Scattered showers. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers. .SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds. .SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers. .SUNDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. .SUNDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers. .MONDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers. $$ AMZ735-220930- Coastal Waters of Southern Puerto Rico out 10 NM- 416 PM AST Wed May 21 2025 .TONIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots late this evening and overnight. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 7 seconds. Scattered showers early this evening, then isolated showers late this evening and overnight. .THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 5 seconds and east 1 foot at 8 seconds. Scattered showers in the evening. .FRIDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. Scattered showers in the afternoon. .FRIDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. Scattered showers. .SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers. .MONDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers. $$ AMZ741-220930- Mona Passage Southward to 17N- 416 PM AST Wed May 21 2025 .TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds. Isolated showers this evening, then scattered showers after midnight. .THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds. .THURSDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. Scattered showers in the evening. .FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 6 seconds and north 1 foot at 10 seconds. .FRIDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds and north 1 foot at 9 seconds. Scattered showers. .SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds and north 1 foot at 9 seconds. .SATURDAY NIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. .SUNDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. .MONDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers. $$ AMZ742-220930- Coastal Waters of Northwestern Puerto Rico out 10 NM- 416 PM AST Wed May 21 2025 .TONIGHT...East winds 5 to 10 knots with gusts up to 20 knots, increasing to 10 to 15 knots with gusts up to 20 knots after midnight, then diminishing to 5 to 10 knots late. Seas around 2 feet. Wave Detail: Northeast 2 feet at 5 seconds. Scattered showers early this evening, then isolated showers late this evening. .THURSDAY...East winds 5 to 10 knots, becoming northeast in the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers in the afternoon. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. Scattered showers in the evening. .FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 2 feet at 6 seconds and north 1 foot at 11 seconds. Scattered showers in the afternoon. .FRIDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 6 seconds and north 1 foot at 9 seconds. Scattered showers. .SATURDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at 6 seconds and north 1 foot at 9 seconds. Scattered showers in the afternoon. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. .SUNDAY...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers in the afternoon. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. .MONDAY...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Numerous showers in the afternoon. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers. $$ AMZ745-220930- Coastal Waters of Southwestern Puerto Rico out 10 NM- 416 PM AST Wed May 21 2025 .TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Isolated showers this evening. .THURSDAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. .THURSDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. .FRIDAY...East winds 10 to 15 knots, becoming southeast 15 to 20 knots in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds. .FRIDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds and north 1 foot at 8 seconds. .SATURDAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds and north 1 foot at 8 seconds. Scattered showers in the afternoon. .SATURDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet. .SUNDAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Numerous showers in the afternoon. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. .MONDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers in the afternoon. .MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to 4 feet. Scattered showers. $$